Heh. I was going to comment that I finally watched the Charlton Heston version just a few years ago ( alone in a motel room, ) and it seemed to me to be designed to resemble Bible illustrations of that era, especially in the color scheme. Well, look at this:
![](http://i307.photobucket.com/albums/nn305/dr_lew/moses_zps76968d40.jpg)
I suppose this visual conception goes way back.